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Denis Khismatullin vs Sanan Sjugirov
"Denis Rook can Sting" (game of the day Sep-12-2015)
Russian Championship Superfinal (2009), Moscow RUS, rd 4, Dec-23
King's Indian Defense: Fianchetto. Panno Variation (E63)  ·  1-0

ANALYSIS [x]

FEN COPIED

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Kibitzer's Corner
< Earlier Kibitzing  · PAGE 3 OF 3 ·  Later Kibitzing>
Apr-24-20  rdeckard: I went with 36.Bxc3 Rxb1 37.Bb2 trying to trap the rook. May not be enough to win easily, I suppose. No points for me today.
Apr-24-20  Elbajacisback: Hi folks, is there any way to change the settings so I can see the daily puzzles properly again? The new style is awful on my samsung android phone. Any hints or tips welcome. Cheers!
Apr-24-20  7he5haman: My favourite line is

37. a6 Qc7 38. Rb7 Qd8 39. Ba5 Qe8 40. Rb8 Qd7 41. Bh3! f5 42. exf5 gxf5 43. Bxf5! Qxf5 44. a7 Qxf3 45. a8=Q e4

Black threatens the deadly Bd4+, but it's not enough:

46. Rxc8+ Kf7 47. Rc7+ and Black is getting mated or losing his Queen, e.g. 47...Kf6 48. Qd8+ Kg6 49. Qe8+ Kf5 50. Qe6+ Kg5 51. Bd2+ Kh5 52. Qe8+ Kg4 53. Rxg7+ Kh3 54. Qe6+ Qf5 55. Qxf5#

The whole line probably isn't forced and/or the most efficient way for White to win, but I thought it was pretty cool!

Apr-24-20  Cheapo by the Dozen: I went with Nxd6 rather than Nb6. The engine agrees with me. However, its reasons are surely better than mine, because I was simply overlooking how Bh6 contributes to a forced mate. :)
Apr-24-20  7he5haman: Edit: and I thought 41.Bh3 was pretty cool too. Black probably has to opt for 41...Qa7 42. Rxc8+ Bf8 43. Rc6, but it's hard to stop White's upcoming Bc8-Rc7-Bb7-Rc8 maneuver.
Apr-24-20  SpamIAm: <Brenin> 37.Bh3 was my first instinct but it looks like it fails to 37...f5 38.exf5 Qc7.
Apr-24-20  goodevans: <36.Rxb8> is pretty easy to spot when the position is presented as a puzzle, maybe less so in a game.

I went with <37.Nd6> and thought I may have blown it when I saw that the game continued <37.Nb6> but it turns out both moves are winning.

<agb2002> gives the analysis for 37.Nd6, all of which is, I think, easier to envision than the game line. Just one thing to add to that: In line <A.2>, if black plays <41...c4> then it's necessary to play <42.Be3> before pushing the pawn.

Apr-24-20  SpamIAm: <Morfishine>, black's 18...Rb8 was not a true offer of the exchange since after 19. Nxb4 cxb4 black will actually end up winning an additional knight for the rook, ending up with two knights for the rook (and pawn).
Apr-24-20  TheaN: Typical. I went with the otherwise forcing simplification <36.Rxb8 Nxa4 37.Nxd6> which is better, according to the quick SF9 analysis.

The point is that White is also threatening Rxc8 but the knight can't intervene. Black's pretty much limited to taking on d6 as otherwise Rxc8+ with Bh6. After <37....Qxd6 38.Rxc8+> 38....Qf8 loses instantly to 39.Rxf8+ Bxf8 40.Bb5 +- as White gains an additional tempo getting the a-pawn across, but <38....Bf8 39.Bh6 +-> isn't much different, Black can't complicate matters with the additional tempo.

I don't really get the Nb6 setup. It wins too but why allow the distracted queen-grabber back in the fray? I looked at it but discarded it quickly.

Apr-24-20  Brenin: <SpamIAm>: After 36 Rxb8 Nxa4 37 Bh3 f5, White's best seems to be not 38 exf5 but 38 a6, e.g. 38 ... Qc7 39 Rb7 Qd8 40 Ba5 followed by 41 Rb8. Not as convincing as 37 Nxd6, Nb6 or even a6, but it seems to give White good winning chances.
Apr-24-20  SpamIAm: <Brenin>, looks good. Sometimes first instincts are good. :)
Apr-24-20  Chesgambit: Rxb8 Nb6 easy puzzle
Apr-24-20  alshatranji: I went with Nd6, which is better according to Stockfish. On the other hand, I did not even consider Nb6.
Apr-24-20  King.Arthur.Brazil: I found the combination up to: 36. ♖xb8 ♘xa4 37. ♘b6 ♘axb6 38. axb6. Now, I thought that it was incorrect, because I supposed that Black would answer 38...♕xb6 and if White proceeds with 39. ♖xb6 ? ♘xb6 , the Black is ok. However, with 39.♖xc8+ ♗f8 40. ♗h6 c4+ 41. ♔g2 ♕b2+ 42. ♔h3 and the Black cannot avoid the checkmate. Early, I didn't see the ♗d2 resting. Lgs.
Apr-24-20
Premium Chessgames Member
  chrisowen: Barbeque to give out circular breath.
Apr-24-20  20MovesAhead: 35. Nxe5 !?
Apr-24-20
Premium Chessgames Member
  Breunor: Easy because I found the first move jumps out at you for a puzzle. I look at the queen sacrifice and then see if works.
Apr-24-20  CopyBlanca: I came up with 37 N takes pawn on D6. I think that is pretty good too. as the threat of mate with a B-H6 lurking a few moves down gives black a lot of problems.
Apr-24-20  mel gibson: Stockfish 11 says:

36. Rxb8

(36. Rxb8 (♖b1xb8 ♘c3xa4 ♘c4-b6
c5-c4 ♖b8xc8 ♕d8xc8 ♘b6xc8 c4-c3 ♗d2-c1 ♘a4-c5 a5-a6 ♘c5xa6 ♗f1xa6 ♗g7-f8 ♗c1-a3 f7-f6 ♗a6-d3 h7-h5 ♘c8xd6 ♗f8-e7 ♘d6-b5 ♗e7-d8 ♔g1-g2 h5-h4 g3xh4 f6-f5 e4xf5 g6xf5 ♗d3xf5 ♔g8-g7 ♘b5xc3 ♔g7-f6 ♗f5-d3 e5-e4 f3xe4 ♔f6-e5 ♘c3-b5 ♔e5-f4 ♗a3-c1+ ♔f4-e5 ♔g2-g3 ♔e5-f6 ♗c1-b2+ ♔f6-g6 e4-e5+ ♔g6-g7 ♘b5-d4) +13.10/39 173)

score for White +13.10 depth 39

Apr-24-20  Brenin: <20MovesAhead>: 35 Nxe5 Nd4 36 Nc6 Qe8 (pinning the N and threatening Nxf3+) 37 Bg2 Na7, and most of White's advantage has gone.
Apr-24-20  20MovesAhead: Thanks Brenin

but what about 37. Kg2 ,

e.g. 35. Nxe5 Nd4 36. Nc6 Qe8 37. Kg2 Na7 38. Bc3 Naxc6 39. dxc6 Qxc6 40. Rxd4 Qxa4 41. Rxa4 Bxc3 42. a6 Ra8 43. a7 c4 44. Bxc4 Bd4 45. Bd5 Rxa7 46. Rxd4 +-

Apr-25-20  Brenin: <20MovesAhead>: 37 Kg2 allows 37 ... Rb2, followed by Nb3 or Bh6,and Black is getting too much counterplay.
Apr-25-20  20MovesAhead: Yes 37...Rb2 is winning

so 35.Rb1 is probably best but here what if black plays 35... Nca7 ,( instead of 35...Nc3 which loses )

Is B better if he gets a knight to d4 ?

Apr-25-20
Premium Chessgames Member
  chrisowen: Counted no but coffees out it sounds like Nb6 no?
Apr-25-20
Premium Chessgames Member
  chrisowen: Fake friends but bold!
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